Off-Highway Recreational Vehicles

This page last reviewed June 12, 2015


Welcome to the California Air Resources Board's (ARB) off-highway recreational vehicle (OHRV) regulatory activity home page.  OHRVs primarily include off-highway motorcycles, all-terrain vehicles (ATV) and utility-terrain vehicles (UTV).  Although their categorical name only acknowledges the segment's recreational aspects, OHRVs are frequently used in occupational disciplines that include, but are not limited to, agriculture, building and trades, landscape maintenance, and law enforcement.  Spark ignited OHRV's are a known source of tropospheric ozone precursors that contribute to the formation of photochemical smog.  In response to their air quality impact, ARB began regulating OHRV emissions as early as 1994.  For additional information regarding ARB's OHRV and associated regulatory programs, please click the links provided on this page, or those provided in the left margin under "Program Links."

Recent Public Outreach Events
Formal Regulatory Documents

OHRV and Engine Certifications

Recent Events

Regulatory Documents
Certification Policies

Executive Orders

Test Procedures

Red Sticker Program
Golf Carts & Go-Karts

Related Links

Red Sticker Program

Golf Cart & Go-Kart

Related Links

Keep Me Posted

If you are interested in receiving updates and public annoucements regarding ARB's OHRV regulatory programs, please click on the link in the left margin labeled "Join the ORREC E-Mail List" and enter your contact information.

OHRV Emissions Rulemaking Contacts

  • OHRV Evaporative Emissions:  Scott Monday (916) 445-9319
  • OHRV Red Sticker Program Evaluation:  Cassie Lopina (916) 322-2411
  • OHRV Emissions Inventory Testing:  Sherry Zhang (626) 350-6400